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class CbaseExtension
{
MXparamList *priv;
public:
CbaseExtension();
CbaseExtension( const CbaseExtension &orig );
void internalCreation ();
void setPrivateExtensionData( MXparamList* pL ) const;
virtual ~CbaseExtension();
virtual CbaseExtension* clone() const = 0;
virtual const char* getName() const = 0;
virtual const unsigned int getVersion() const = 0;
virtual void setExtensionData( MXparamList* p ) const = 0;
//User Implemented Optional Methods
virtual void getFileDependencies( dword& numDependencies, char** &paths )
{
numDependencies = 0;
};
virtual void handleEvent( const char* event , void* param ) {};
virtual bool initializeForRendering( Cmaxwell* pMaxwell ) = 0;
virtual void cleanup( Cmaxwell* pMaxwell ) {};
virtual bool initializePreview( Cmaxwell* pMaxwell )
{
return ( true );
}
virtual void freePreview( void )
{
}
//Interface Methods
MXparamList* getExtensionData( void ) const;
void setEnabled( const bool enable );
bool isEnabled( void ) const;
}; |
For example, getFileDependencies is useful when the extension depends on one or more files. Studio calls this function when doing a "Pack & Go" to retrieve and copy all the dependencies of a given scene. Mxnetwork also calls this function to check all the dependencies of a scene before sending it to the render nodes.
initializeForRendering is called just before rendering starts, and the incoming pMaxwell (always check != NULL ) is useful for accessing the scene, so it is handy to store it as a class member.
The following functions are called exclusively from Studio.initializePreview and freePreview mainly reset and free the arrays allocated in getProxyDisplay*. Keep a copy of the allocated pointers as members of the class and free them in freePreview.
initializeForRendering
virtual bool initializeForRendering( Cmaxwell* pMaxwell ) = 0;
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